79957404885 has 8 divisors (see below), whose sum is σ = 127931847840. Its totient is φ = 42643949264.

The previous prime is 79957404883. The next prime is 79957404889. The reversal of 79957404885 is 58840475997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79957404885 - 2¹ = 79957404883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79957404883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2665246815 + ... + 2665246844.

It is an arithmetic number, because the mean of its divisors is an integer number (15991480980).

Almost surely, 2^79957404885 is an apocalyptic number.

It is an amenable number.

79957404885 is a deficient number, since it is larger than the sum of its proper divisors (47974442955).

79957404885 is a wasteful number, since it uses less digits than its factorization.

79957404885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330493667.

The product of its (nonzero) digits is 101606400, while the sum is 66.

The spelling of 79957404885 in words is "seventy-nine billion, nine hundred fifty-seven million, four hundred four thousand, eight hundred eighty-five".